CODEWITHSUNDEEP
c#imagewinformslistviewicons
themati91
themati91

Reputation: 41

C# listView, add icon to existing item

I want to add small image to existing row i listView. ListView is connected to SQLite DB. When select some row in listView and click on button "Zakoncz" there is added to SQLite DataBase value "1" to column "CzyZaznaczone" and when here is value "1" listView should add image to selected row. My image is in resources, can I use that or only from file? Now my code adds a value to the database but does not add an image.

Here is the code:

SQLiteConnection con = new SQLiteConnection("data source=baza.db");
        SQLiteDataAdapter ada = new SQLiteDataAdapter("select * from Przypominacz", con);
        SQLiteCommand cmd = con.CreateCommand();
        var index = this.listView1.SelectedIndices[0];
        string zaznaczone = this.listView1.Items[index].SubItems[0].Text;
        con.Open();
        cmd.CommandText = "UPDATE Przypominacz SET CzyZakonczone=1 WHERE Nazwa='"+ zaznaczone + "'";
        cmd.ExecuteNonQuery();

        //dodanie ikonki do zakonczonego zadania

        bool result = false;
        string sql = "SELECT * FROM Przypominacz WHERE CzyZaznaczone='1'";
        SQLiteDataReader reader = cmd.ExecuteReader();
        if (reader.Read())
        {
                result = true;
        }
        reader.Close();
        bool rezultat = result;

        if(rezultat==true)
        {
            for (int i = listView1.SelectedItems.Count - 1; i >= 0; i--)
            {
                ImageList imageList = new ImageList();
                imageList.Images.Add(Image.FromFile("D:\\C#\\Przypominacz2 — kopia (4)\\przypominacz\\przypominacz\\Resources\\checked.png"));
                listView1.SmallImageList = imageList;
                var listViewItem = listView1.Items.Add("Item with image");

            }
        }

Now looks: Without img

But should looks like this: With img

Upvotes: 1

Views: 4758

Answers (1)

Nino
Nino

Reputation: 7095

You are adding new ListViewItem to existing list instead of changing selected one(s). You can do it like this:

if(rezultat)
{        
    ImageList imageList = new ImageList();
    imageList.Images.Add(Image.FromFile("D:\\C#\\Przypominacz2 — kopia (4)\\przypominacz\\przypominacz\\Resources\\checked.png"));
    listView1.SmallImageList = imageList;

    for (int i = 0; i < listView1.Items.Count; i++ )
    {
        if (listView1.Items[i].Selected)
            listView1.Items[i].ImageIndex = 0;
    }
}

To add image to ImageList from resources, take a look at this question

Upvotes: 2

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